Development and Validation of Simple Age-Adjusted Objectified Korean Triage and Acuity Scale for Adult Patients Visiting the Emergency Department

• Published in: Yonsei Medical Journal Vol. 63; no. 3; pp. 272 - 281
• Main Authors: Kim, Seung Wook, Kim, Yong Won, Min, Yong Hun, Lee, Kui Ja, Choi, Hyo Ju, Kim, Dong Won, Jo, You Hwan, Lee, Dong Keon
• Format: Journal Article
• Language: English
• Published: Korea (South) Yonsei University College of Medicine 01.03.2022; 연세대학교의과대학
• Subjects: Adult; Emergency Service, Hospital; Hospitals, Teaching; Humans; Original; Original Article; Republic of Korea; Retrospective Studies; Triage; Triage - methods; 의학일반; Republic of Korea; emergency medical services; mortality; Triage
• ISSN: 0513-5796; 1976-2437; 1976-2437
• DOI: 10.3349/ymj.2022.63.3.272

The study aimed to develop an objectified Korean Triage and Acuity Scale (OTAS) that can objectively and quickly classify severity, as well as a simple age-adjusted OTAS (S-OTAS) that reflects age and evaluate its usefulness. A retrospective analysis was performed of all adult patients who had visited the emergency department at three teaching hospitals. Sex, systolic blood pressure, diastolic blood pressure, pulse rate, respiratory rate, body temperature, O saturation, and consciousness level were collected from medical records. The OTAS was developed with objective criterion and minimal OTAS level, and S-OTAS was developed by adding the age variable. For usefulness evaluation, the 30-day mortality, the rates of computed tomography scan and emergency procedures were compared between Korean Triage and Acuity Scale (KTAS) and OTAS. A total of 44402 patients were analyzed. For 30-day mortality, S-OTAS showed a higher area under the curve (AUC) compared to KTAS (0.751 vs. 0.812 for KTAS and S-OTAS, respectively, <0.001). Regarding the rates of emergency procedures, AUC was significantly higher in S-OTAS, compared to KTAS (0.807 vs. 0.830, for KTAS and S-OTAS, respectively, =0.013). S-OTAS showed comparative usefulness for adult patients visiting the emergency department as a triage tool compared to KTAS.